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Upgrade to flake8 v6 (#8007)

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fix validation condition and add tests (#7997)

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Add backtrack word search in matrix (#8005)

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algorithm: Hexagonal number (#8003)

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algorithm: Hexagonal number (#1265)

Added a new Maths algorithm to determine if two non-null integers are "friendly numbers" (#1267)

refactor: Fix build failure

 know more

Describe your change:

• [x] Add an algorithm?
• [ ] Fix a bug or typo in an existing algorithm?
• [ ] Documentation change?

Checklist:

• [x] I have read CONTRIBUTING.md.
• [x] This pull request is all my own work -- I have not plagiarized.
• [x] I know that pull requests will not be merged if they fail the automated tests.
• [x] This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• [x] All new JavaScript files are placed inside an existing directory.
• [x] All filenames should use the UpperCamelCase (PascalCase) style. There should be no spaces in filenames. Example:UserProfile.js is allowed but userprofile.js,Userprofile.js,user-Profile.js,userProfile.js are not
• [x] All new algorithms have a URL in its comments that points to Wikipedia or other similar explanation.
• [x] If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}.

This PR contains commits for hexagonal number. Kindly have a look.

Thanks.

Describe your change:

• [x] Add an algorithm?
• [ ] Fix a bug or typo in an existing algorithm?
• [ ] Documentation change?

Checklist:

• [x] I have read CONTRIBUTING.md.
• [x] This pull request is all my own work -- I have not plagiarized.
• [x] I know that pull requests will not be merged if they fail the automated tests.
• [x] This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• [x] All new Python files are placed inside an existing directory.
• [x] All filenames are in all lowercase characters with no spaces or dashes.
• [x] All functions and variable names follow Python naming conventions.
• [x] All function parameters and return values are annotated with Python type hints.
• [x] All functions have doctests that pass the automated testing.
• [x] All new algorithms include at least one URL that points to Wikipedia or another similar explanation.
• [x] If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}.

Bi directional dijkstra (#7982)

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Fix argument validation for count_1s_brian_kernighan_method (#7994)

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clean of unnecessary checks, imports, calls (#7993)

This PR contains addition of palindromic number to the Go repository. Kindly have a look.

Thanks

feat(cipher/transposition): add fuzz test to transposition cipher #600 (#601)

fix: Fix file name of constraints package (#608)

What would you like to share?

Hi,

I have not seen any implementation of infix expression to prefix expression in this repository. Could you please assign this issue to me?

Regards, Akshay

Additional information

No response

algorithm: Add juggler sequence (#7985)

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• refactor: Remove temp variable

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Additional intro blockchain doc (#7974)

• A deeper introduction to blockchain technology

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Rectified errors as image was not visible

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fix: no implicit optional (#7984)

algorithm: Liouville lambda function (#7986)

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fix: mypy 0.991 issues (#7988)

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• fix: invalid condition for base case

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update: delete middle func for linked list (#560)

• Added code for delete in middle for linkedlist

• update to previous commit of linked list

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feat(cipher/polybius): add fuzz test to polybius cipher (#600)

algorithm: Pronic number (#595)

algorithm: check if string is isogram (#599)

algorithm: Square free integer (#3760)

• feat: Add square free integer implementation

Closes #3402

• test: Add unit tests for square free integer

Closes #3402

• fix: Fix failing build

Changed static import for assertEquals() Closes #3402

Fix spelling (#3444)

Create CRC16.java (#3733)

• Create CRC16.java

• Create CRC16Test.java

Add Bead Sort (#3761)

Fix BFS (#3759)

Add AliquotSum (#3765)

Add tests for recursive merge sort (#3510)

Added test cases to CocktailShakerSort. (#3766)

• Add testcase to CocktailShakerSort Algorithm

• fixed method name to lowerCamelCase

tests: improve for GeneratePermutations (#1263)

Can we have tests for larger numbers like 10 and 25?

I have added tests for 10 and 25 in this commit, kindly have a look.

refactor: Remove int typecasting

test: Add unit tests for n=10 and n=25

Update README.md

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